AI-narrated version of this post using a synthetic voice. Great for accessibility or listening while busy.
Picking a UPS gets confusing fast because the two numbers on the box measure different things, and because the cheapest units output a waveform that some modern PC power supplies dislike. CyberPower sells into both camps at once: simulated sine wave models for routers and simple loads, and the PFC Sinewave line for anything with an active power factor correction supply.
This guide is for anyone protecting a NAS, a Proxmox or Unraid box, a small rack, or a desktop that cost more than the UPS ever will. It walks through five CyberPower models that cover most home lab situations, explains what separates them, and says plainly who each one is wrong for.
Every product detail below comes from the manufacturer’s published specifications. Runtime, battery part numbers and software compatibility lists change between revisions, so check CyberPower’s own product page and compatibility list before ordering if a specific detail decides the purchase for you.
What CyberPower is known for, and the main trade-off
CyberPower’s reputation in home labs rests on two things: pure sine wave output at line-interactive prices, and colour LCD panels on models where competitors often ship a few LEDs. The PFC Sinewave series in particular has become a default suggestion for people running active-PFC ATX supplies, because a stepped approximated waveform can cause those supplies to buzz, drop out or refuse to switch to battery cleanly.
The trade-off is on the management side. CyberPower’s PowerPanel software covers the essentials, with a feature set aimed at home and small-office use rather than the deeper tooling larger enterprise-focused vendors build for data-center fleets, and network management card support sits in higher tiers than the models here. If you want SNMP, a web interface and card slots, you are looking at a different class of product entirely.
Watt headroom is the other consideration. CyberPower’s consumer towers are conservative on real power relative to their VA rating, which matters more than people expect when sizing.
Lineup at a glance
VA versus watts, in one paragraph
VA is apparent power; watts is real power. A 1500VA/1000W unit cannot deliver 1500 watts, and the watt figure is the one your gear actually draws. Size against watts, keep steady-state load around half the rating to leave room for spin-up surges and ageing batteries, and remember that runtime falls away sharply as load climbs toward the limit. Our UPS guide for home servers and NAS boxes works through the sizing arithmetic in more detail.
| Model | Rating | Output waveform | Outlets | Form factor |
|---|---|---|---|---|
| CP1500PFCLCD | 1500VA / 1000W | PFC Sinewave | 12 (6 battery + surge, 6 surge only) | Mini tower |
| CP1000PFCLCD | 1000VA / 600W | PFC Sinewave | 10 (5 battery + surge, 5 surge only) | Mini tower |
| CP850PFCLCD | 850VA / 510W | PFC Sinewave | 10 (5 battery + surge, 5 surge only) | Mini tower |
| CP685AVRG | 685VA / 390W | Simulated sine wave | 8 (4 battery + surge, 4 surge only) | Compact |
| CP1500PFCRM2U | 1500VA / 1000W | PFC Sinewave | 8 (battery + surge) | 2U rack, 10.5 in deep |
The PFC Sinewave towers
CP1500PFCLCD: the default for a mixed desk or small lab
At 1500VA/1000W this is the largest tower here, and the 12 outlets split evenly between battery-backed and surge-only, which is genuinely useful when a monitor, printer or speaker set should get protection but not drain the battery. It adds two USB charge ports, one Type-A and one Type-C, plus a colour LCD that tilts up to 22 degrees so you can read it from a desk or a shelf.
Choose it for a NAS plus a switch plus a small server, or for a gaming PC where you want enough margin to ride out a long brownout. Skip it if your total draw is well under 300W, because you are paying for headroom and bulk you will never use.
- 1500VA/1000W PFC Sinewave Uninterruptible Power Supply (UPS): Uses sine wave output to provide battery backup power f…
- 12 NEMA 5-15R OUTLETS: 6 battery backup & surge protected outlets, 6 surge protected outlets; INPUT: NEMA 5-15P right…
- MULTIFUNCTION, COLOR LCD PANEL: Displays immediate, detailed information on battery and power conditions; Color displ…
CP1000PFCLCD: the sensible middle
Same sine wave output and same tilting colour LCD, but 1000VA/600W and ten outlets. That 600W ceiling is the thing to watch: it suits a four-bay NAS with a router and switch, or a moderate desktop, but a multi-GPU workstation will eat into it quickly.
- 1000VA/600W PFC Sine Wave Battery Backup Uninterruptible Power Supply (UPS) System designed to support active PFC and…
- 10 NEMA 5-15R OUTLETS: Five battery backup & surge protected outlets; Five surge protected outlets; INPUT: NEMA 5-15P…
- MULTIFUNCTION, COLOR LCD PANEL: Displays immediate, detailed information on battery and power conditions; Color displ…
CP850PFCLCD: smallest sine wave option
At 850VA/510W the CP850PFCLCD keeps PFC Sinewave output and the LCD panel while dropping the USB charge ports. It is the pick for a single small server or a compact NAS where the point is clean shutdown time rather than extended operation. Anyone planning to add drives or a second node later should step up rather than buy twice.
- 850VA/510W PFC Sine Wave Battery Backup Uninterruptible Power Supply (UPS) System designed to support active PFC and…
- 10 NEMA 5-15R OUTLETS: Five battery backup & surge protected outlets; Five surge protected outlets; INPUT: NEMA 5-15P…
- MULTIFUNCTION, COLOR LCD PANEL: Displays immediate, detailed information on battery and power conditions; Color displ…
Budget AVR and short-depth rackmount
CP685AVRG for the modem, router and edge gear
This one is 685VA/390W with simulated sine wave output, eight outlets, LED status lights instead of an LCD, and a six-foot cord. Put it under the modem, router and an access point so the network survives short cuts and the house keeps working during a flicker. Do not put an active-PFC desktop or server supply on it; that is what the Sinewave models exist for. Our roundup of entry-level UPS picks covers the rest of this category.
- 685VA/390W AVR Uninterruptible Power Supply (UPS): Uses simulated sine wave technology to provide battery backup powe…
- EIGHT NEMA 5-15R OUTLETS: Four battery backup & surge protected outlets, Four surge protected outlets; INPUT: NEMA 5-…
- AUTOMATIC VOLTAGE REGULATION (AVR): Corrects minor power fluctuations without switching to battery power, thereby ext…
CP1500PFCRM2U for short racks
Same 1500VA/1000W electrical rating as the big tower, in a 2U chassis only 10.5 inches deep, with eight battery-backed and surge-protected outlets and a colour LCD. Depth is the whole point: plenty of 12U and 15U wall or network racks cannot swallow a full-depth UPS, and this one fits where those do not. Bear in mind that rack UPS units sit in the same airflow as your switches, and that a 2U battery chassis is heavy enough to want rails or a shelf rated for it. The rack-mount UPS comparison puts it next to other options by VA.
- 1500VA/1000WPFC Sinewave Uninterruptible Power Supply (UPS): Uses sine wave output to provide battery backup power fo…
- EIGHT NEMA 5-15R OUTLETS: Provide battery backup & surge protection for connected devices; INPUT: NEMA 5-15P right an…
- MULTIFUNCTION, COLOR LCD PANEL: Displays immediate, detailed information on battery and power conditions; Color displ…
PowerPanel, USB HID shutdown and NUT
CyberPower’s consumer models manage over USB, with PowerPanel Personal on Windows and macOS handling alerts, load display and graceful shutdown. It does the job. It is not a dashboard you will enjoy looking at, and multi-machine coordination is clumsier than on enterprise gear with a network card.
For NAS and Linux users the real question is HID support. Most CyberPower USB models present a standard HID power device, which is why Synology, QNAP, TrueNAS and Network UPS Tools generally see them, often as the usbhid-ups driver. Support is per-model and per-firmware, so verify your exact model against your NAS vendor’s compatibility list and the NUT hardware list before committing.
Batteries are user-replaceable sealed lead-acid cells with a typical service life measured in a few years, shorter in warm cupboards. Plan on replacing them rather than replacing the UPS, and see our replacement battery guide for matching cells correctly. Any work involving house wiring, grounding or dedicated circuits should follow local electrical code and use a licensed electrician where required.
Which one for your situation
- Network gear only: CP685AVRG.
- One NAS or one small server: CP850PFCLCD.
- NAS plus switch plus desktop: CP1000PFCLCD, watching the 600W ceiling.
- Gaming PC or a couple of nodes: CP1500PFCLCD.
- Shallow rack: CP1500PFCRM2U.
Choose something else if you need SNMP monitoring, hot-swap battery modules or double-conversion online power for sensitive equipment. Readers who want network management cards, a longer enterprise service ecosystem or Smart-UPS style features should compare against the APC lineup before deciding.
FAQ
What does PFC Sinewave actually mean?
It means the UPS produces a true sine wave on battery rather than a stepped approximation, which is what active power factor correction supplies in modern PCs and servers expect.
Does the CP685AVRG suit a desktop PC?
It is specified for desktops, workstations and home entertainment gear, but its simulated sine wave output makes it a better fit for networking equipment than for an active-PFC gaming or server supply.
How much runtime do these models provide?
Runtime depends entirely on load and battery age, and it drops steeply near the watt rating. Use CyberPower’s published runtime chart for your model and your measured draw rather than a rule of thumb.
Why is the watt rating so much lower than the VA rating?
VA describes apparent power and watts describe real power delivered. Always size against watts, and leave headroom for startup surges from spinning disks.
How these picks were chosen: HomeNode compares products using manufacturer specifications, current Amazon listing details and published owner feedback. Products are not tested in-house, and listings change often, so confirm current specifications on the product page before buying.
Affiliate disclosure: As an Amazon Associate, HomeNode earns from qualifying purchases at no additional cost to you.